﻿using System;
using System.Collections.Generic;
using System.Text;


#if NET40 
    namespace System.Runtime.CompilerServices //4.0及以下框架用，高于4.0请移除下方代码
    {
        [AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
        public class CallerMemberNameAttribute: Attribute { }
        [AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
        public class CallerFilePathAttribute : Attribute { }
        [AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
        public class CallerLineNumberAttribute : Attribute { }

    }
#endif

